Process of manufacturing borneol



Patented Sept. 19, 1922.

ALBIN HALLER, OF PARIS, FRANCE, ASSIGNOR TO FABRIQUES DE PRODUITS CHIMIQUES DE THANK ET DE MULHOUSE, THANN, (HAUT-RHIN),

- FRANCE.

No Drawing.

a tetrachlorophthalic acid in order to obtain the corresponding di-bornyl-ester which is then transformed into borneol by hydroly- SlS.

The present invention has for its object a process of manufacturing borneol, analogous to said process previously described,

but in which new process the acid employed 1 is a tetrahalogenphthalic acid other than the chlorine derivative already proposed.

These tetrahalogenphthalic acids are obtained by four-times substituting a halogen in the phthalic acid, or its isomers, and

they are viz: the tetrabromophthalic acids C Br (CO H the tetraiodophthalic acids rnoonss OF MANUFACTURING Bonnnon Application filed October 18, 1921. Serial No, 508,596.

2. In a process of manufacturing borneol, 40

producing a reaction between pinene and a tetrabromophthalic acid.- I a 3. As a new product, di-bornyl ester of a terahalogenphthalic acid other than the chlorine derivative.

4. As a new product, di-bornyl ester of a tetrabromophthalic acid. I

In testimony whereof I have signed this specification. I

v ALBIN HALLER. 

